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Square planar bis(imino)pyridine iron halide and alkyl complexes
Marco W Bouwkamp1, Suzanne C Bart, Eric J Hawrelak
1Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, NY 14853, USA.
Chemical Communications (Cambridge, England)
|July 6, 2005
Summary
Square planar iron complexes with bis(imino)pyridine ligands were synthesized. Dialkylation occurred when using larger alkyl lithium reagents, indicating specific reactivity patterns for these iron methyl complexes.
Area of Science:
- Organometallic Chemistry
- Coordination Chemistry
- Iron Complexes
Background:
- Bis(imino)pyridine (PDI) ligands are versatile in coordination chemistry.
- Square planar iron complexes offer unique electronic and steric properties.
Purpose of the Study:
- To synthesize novel square planar iron methyl complexes.
- To investigate the reactivity of these complexes with alkyl lithium reagents.
Main Methods:
- Reductive alkylation of ferrous dichloride.
- Synthesis of iron complexes with PDI ligands.
- Treatment with alkyl lithium reagents.
Main Results:
- Successful preparation of square planar iron methyl complexes.
- Observation of dialkylation upon reaction with larger alkyl lithium reagents.
Conclusions:
- The study demonstrates a viable route to iron methyl PDI complexes.
- Reactivity is sensitive to the size of the alkyl lithium reagent, leading to dialkylation.